Image not align at center on UIButton

 

I have customized UIButton with the following properties:

  • 84x44 frame
  • 84x44 background image
  • 32*32 image that should be centered

    • but my image is always aligned to the left. How can I align it back to center position on the UIButton?

    I have a title on my button that is hidden (clearColor). These titles are key_value in a dictionary so I know which button is pressed and return corresponding value in the dictionary. I now understand that it's these text that is pushing my image sideway, but how do I fix that?

    Under attribute inspector, there is a tap named Edge, set to Image. I set left value as 22 and all image align to center. Can someone explain to me how this works?

    检查titleLabel是否为空 - 如果它有文本，它会将image向左推， titleLabel右侧的titleLabel腾出空间。

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